with provocative talk from teen superstar, selena gomez. Making headlines saying it's good to be a good girl. Her comments coming after so many recent raunchy acts from her peers. And abc's linsey davis has the story. Reporter: Consider the envelope pushed. More and more, hollywood starlets seem to be taking the less is more approach. Earlier in year, rihanna appeared in a bathtub wearing nothing but her birthday suit. &#9834; Don't you ever say &#9834; Reporter: And miley cyrus in her video "wrecking ball," at times, she appears to wear only a few scant tattoos. Now, two hollywood voices are speaking out, calling on celebrities to cover up. You are made to be who you are. And that is what is so attractive and beautiful. Reporter: Disney starlet turned superstar, salena gomez, found fame by being a good girl. And says that's who she'll continue to be. I get it all day, every day, that I'm not sexy enough. And let me tell you one thing. The sexiest thing, I think, actually, I know, is class. And that's it. Has not hurt her popularity yet. That's the message she's sending. You can wear clothes. And act your age. Reporter: Now, 21, gomez has certainly shaken off her wholesome teen image, as evidenced by her new music video, "come get it." All grown up. But clothed, nonetheless. Clearly not one of the female flesh flashers that "packs and recreation" actress, rashida jones admonished in a twitter rant. Sure, be sexy. But leave something to the imagination that old adage of sex sells, still true. Some women are just trying to redefine sexy. Female flesh flasher. Okay? Keeping it covered up is not hurting selena's album sales. Her album hit number one on the billboard charts with career-high sales.

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